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Java Source Code / Java Documentation » UML » MetaBoss » com.metaboss.enterprise.spi.tyreximpl

Source Cross Reference Class Diagram Java Document (Java Doc)

com.metaboss.enterprise.spi.tyreximpl .JournalImpl

JournalImpl
public class JournalImpl extends Journal (Code)
	Implement tyrex's Transaction Journal based on local file in the current working directory

Method Summary
public void	close() Called to close the journal and release any resources held by the journal.
public void	commit(Xid xid, int decision) Records a transaction commit. This method is called when completing two-phase commit of a transaction branch.
public static Journal	createJournal(String pJournalName)
public void	forget(Xid xid) Forgets a heuristically complete transaction.
public void	prepare(Xid xid, int decision) Records the outcome of transaction preparation.
public Journal.RecoveredTransaction[]	recover() Called to initiate recovery.
public void	rollback(Xid xid) Records a transaction rollback. This method is called when completing two-phase commit of a transaction branch.

Method Detail

close
public void close() throws SystemException(Code)
	Called to close the journal and release any resources held by the journal.

commit

public void commit(Xid xid, int decision) throws SystemException(Code)

Records a transaction commit.

This method is called when completing two-phase commit of a transaction branch. This method may be skipped if the transaction is identified as read-only or is a local transaction.

If this method is called, JournalImpl.forget forget must follow.

If the transaction has properly committed, the heuristic decision will be XAResource.XA_HEURCOM. Otherwise, use any of the heuristic codes defined by XAException.XA_HEUR*.
Parameters:
xid - The transaction identifier
Parameters:
decision - The heuristic decision

createJournal
public static Journal createJournal(String pJournalName) throws SystemException(Code)
	Creates journal with specified name

forget
public void forget(Xid xid) throws SystemException(Code)
	Forgets a heuristically complete transaction. This method is called when completing two-phase commit to discard the transaction and close the transaction chain. Parameters: xid - The transaction identifier

prepare

public void prepare(Xid xid, int decision) throws SystemException(Code)

Records the outcome of transaction preparation. The decision code indicates whether the transaction is read-only, requires commit or has rolled back.

This method is called to record the outcome after preparing a transaction. It must record a decision to commit or rollback the transaction. This method may be skipped if the transaction is identified as read-only or for local transactions.

If this method is called, JournalImpl.commit commit or JournalImpl.rollbackrollback must follow.

Valid values for the decision are XAResource.XA_OK, XAResource.XA_RDONLY, or any of the heuristic codes defined by XAException.XA_HEUR*.
Parameters:
xid - The transaction identifier
Parameters:
decision - The outcome of the prepare stage

recover

public Journal.RecoveredTransaction[] recover() throws SystemException(Code)

Called to initiate recovery. This method will return information about all transactions that are subject to recovery.

A recoverable transaction is a transaction that has been processed through two-phase commit but has not been completed. This method will return the heuristic decision for the transaction as reached by the transaction manager.

Transactions that have been completed are generally not returned by this method. In addition it is possible that resource managers will return additional transaction branchs for which the transaction manager has not reached any heuristic decision. An array of zero of more recoverable transactions

rollback

public void rollback(Xid xid) throws SystemException(Code)

Records a transaction rollback.

This method is called when completing two-phase commit of a transaction branch. This method may be skipped for local transactions.

If this method is called, JournalImpl.forget forget must follow.
Parameters:
xid - The transaction identifier

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